package com.example.springboot1.Controller;

import com.example.springboot1.pojo.Result;
import com.example.springboot1.pojo.User;
import com.example.springboot1.service.UserService;
import com.example.springboot1.utils.JwtUtil;
import com.example.springboot1.utils.Md5Util;
import com.example.springboot1.utils.ThreadLocalUtil;
import jakarta.annotation.Resource;
import jakarta.validation.constraints.Pattern;
import org.hibernate.validator.constraints.URL;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.Map;

@RestController
@RequestMapping("/user")
@Validated
public class UserControllerr {


    @Autowired
    private UserService userService;

    @PostMapping("/register")
    public Result register(@Pattern(regexp = "^\\S{5,16}$") String username,@Pattern(regexp = "^\\S{5,16}$") String password){
              //查询
       User u= userService.findByUserName(username);
       if(u==null){
           userService.register(username,password);
           return Result.success();
       }else {
           return Result.error("用户名被占用");

       }
    }
    @PostMapping("/login")
    public Result<String> login(@Pattern(regexp = "^\\S{5,16}$") String username,@Pattern(regexp = "^\\S{5,16}$") String password){
             //根据用户名查询用户
        User lu=userService.findByUserName(username);
        if(lu==null){
            return Result.error("用户名错");
        }
        if(Md5Util.getMD5String(password).equals(lu.getPassword())){
           Map<String,Object> clamis=new HashMap<>();
            clamis.put("id",lu.getId());
            clamis.put("username",lu.getUsername());
           String token= JwtUtil.genToken(clamis);
            return Result.success(token);
        }
        return Result.error("密码错误");
    }
    @GetMapping("userInfo")
    public Result<User> userInfo(/*@RequestHeader(name = "Authorization")String token*/){
      /*  Map<String,Object> map=JwtUtil.parseToken(token);
        String username=(String) map.get("username");*/
        Map<String,Object> map=ThreadLocalUtil.get();
        String username=(String) map.get("username");
        User user=userService.findByUserName(username);
        return Result.success(user);

    }
    @PutMapping("/update")
    public Result updata(@RequestBody @Validated User user){
        userService.update(user);
        return Result.success();

    }

    @PatchMapping("/updatePwd")
    public Result updatePwd(@RequestBody Map<String,String> params){
        //1.校验参数
        String oldPwd = params.get("old_pwd");
        String newPwd = params.get("new_pwd");
        String rePwd = params.get("re_pwd");

        if (!StringUtils.hasLength(oldPwd) || !StringUtils.hasLength(newPwd) || !StringUtils.hasLength(rePwd)){
            return Result.error("缺少必要的参数");
        }
        //原密码是否正确
        //调用userService根据用户名拿到原密码，再和old_pwd比对
        Map<String,Object> map = ThreadLocalUtil.get();
        String username = (String) map.get("username");
        User loginUser = userService.findByUserName(username);
        if (!loginUser.getPassword().equals(Md5Util.getMD5String(oldPwd))){
            return Result.error("原密码填写不正确");
        }

        //newPwd和rePwd是否一样
        if (!rePwd.equals(newPwd)){
            return Result.error("两次填写新密码不一样");
        }

        //2.调用service完成密码更新
        userService.updatePwd(newPwd);
        return Result.success();
    }

}
